| Copinula | |
| Pushpin Map: | El Salvador |
| Pushpin Map Caption: | Location of mouth |
| Source1 Location: | Sonsonate |
| Source1 Coordinates: | 13.6806°N -89.8367°W |
| Mouth Location: | Sonsonate |
| Mouth Coordinates: | 13.6326°N -89.8435°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | El Salvador |
Copinula River (Rio Copinula) is a medium stream in the Sonsonate department of El Salvador, which has moderate to large quantities of fresh water year round, especially from early May through October.[1]
A stream with a similar name, Copinulapa River (Rio Copinulapa), is also located in El Salvador, near the municipality of Nombre de Jesús in the Chalatenango department. This stream is a tributary of the Lempa River at .